A body for a cassette stove

Abstract

The utility model discloses a kind of furnace body of cassette stove, including furnace body ontology and the sub-shell being set to furnace body ontology side, sub-shell is used to assemble gas valve and gas cylinder, sub-shell is equipped with heat dissipation chamber and assembly chamber;Heat dissipation chamber opening faces downward, and its top is higher than the upper surface of furnace body ontology;Assembly chamber is located directly above heat dissipation chamber, opening faces upward, and its top is equipped with the top cover that can be opened and closed;Top cover is closed and forms closed cavity with assembly chamber, top cover back is equipped with temperature insulation component;Temperature insulation component includes the profiled temperature insulation material layer being attached to top cover back, and for fixing profiled temperature insulation material layer profiled fixing plate, profiled fixing plate is attached to top cover back, its edge is equipped with fixed buckle, top cover is equipped with the fixed slot of adaptation with fixed buckle.The beneficial effects of the utility model are: the technical scheme is protected by "physical isolation+passive temperature insulation" multiple, the temperature of assembly chamber is controlled below 50 DEG C, to avoid gas cylinder from high temperature and leak risk.

Description

Technical Field

[0001] This utility model relates to the field of portable gas stove technology, and in particular to a gas stove body for a portable gas stove. Background Technology

[0002] Portable gas stoves, as a type of portable gas heating device, are widely used in outdoor camping, home kitchens, and commercial catering due to their convenience and high heating efficiency. Existing portable gas stove structures typically include the stove body and a gas cylinder assembly area located on the side. This area generally houses the gas valve and gas cylinder through an open or semi-open shell. Their design focuses primarily on gas combustion efficiency and overall portability, with insufficient consideration given to the safety of the gas cylinder and valve's operating environment, resulting in the following technical defects:

[0003] In existing portable gas stoves, the gas cylinder assembly area is often directly adjacent to the combustion zone of the stove body and lacks an independent heat dissipation structure. During combustion, the heat generated by the stove body is easily transferred to the assembly area through heat conduction and radiation, causing the gas cylinder and valve to be in a high-temperature environment of 40-60℃ for extended periods. Especially during prolonged use (such as continuous combustion for more than 2 hours) or high-power heating, the temperature of the assembly area may further rise to over 80℃, accelerating the aging of gas valve seals and increasing the risk of gas leakage. At the same time, high temperatures may also cause abnormal pressure fluctuations inside the gas cylinder, reducing safety during use.

[0004] The top cover of the assembly area of ​​existing portable gas stoves is mostly a single-layer metal or plastic structure without dedicated heat insulation components. When the stove is used in high-temperature outdoor environments (such as direct sunlight in summer) or near other heat sources (such as stoves or charcoal fires), external heat can easily be conducted through the top cover to the interior of the assembly area, combining with the heat generated by combustion and further deteriorating the working temperature environment of the gas cylinder. In addition, some designs lack sufficient sealing between the top cover and the assembly area, allowing external dust and moisture to easily enter the interior, leading to corrosion or blockage of valve interfaces and affecting the service life of the equipment.

[0005] Traditional portable gas stoves often feature an integrated design for both the assembly area and heat dissipation structure, lacking functional zoning. This limits the design of the ventilation holes' location and size. For example, some products, in pursuit of compactness, place the ventilation holes on the side of the assembly area, making them easily obstructed by external objects and reducing heat dissipation efficiency. Furthermore, the assembly and positioning structure of the gas cylinder and valve is simple, lacking anti-displacement design, requiring repeated adjustments when replacing the gas cylinder, making the process cumbersome. Additionally, the connection between the top cover and the shell is often a snap-fit ​​or bolt-fixed method, requiring tools for disassembly and maintenance, which is inconvenient for users' daily cleaning or component replacement.

[0006] Existing assembly area shells mostly use a single material (such as ordinary plastic or thin steel plate). If high-temperature resistance is desired, the material thickness needs to be increased, leading to increased furnace weight and reduced portability. If lightweight materials are used, it is difficult to meet the structural strength requirements under long-term high-temperature environments, and deformation or cracking is likely to occur. In particular, the design of contour-following insulation and fixing structure lacks optimization of material compatibility. For example, the fit between the insulation material and the top cover is insufficient, and it is easy to fall off due to vibration or temperature changes, affecting the insulation effect.

[0007] In summary, existing cassette gas stove bodies have significant shortcomings in terms of heat dissipation, insulation design, structural layout, and material compatibility, resulting in low working environment safety for gas cylinders and valves, poor equipment durability, and insufficient ease of maintenance. Therefore, it is necessary to develop a cassette gas stove body structure that can overcome the deficiencies of existing technologies by optimizing structural layout and functional zoning, enhancing heat dissipation and insulation performance, and improving assembly and maintenance convenience. Utility Model Content

[0008] The main technical problem solved by this utility model is to provide a furnace body for a portable gas stove, thereby solving one or more of the aforementioned prior art problems.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a portable gas stove body, comprising a main body and a secondary shell disposed on one side of the main body, the secondary shell being used to assemble a gas valve and a gas cylinder. The innovation lies in the following: the secondary shell is provided with a heat dissipation chamber and an assembly chamber; the heat dissipation chamber opens downwards and its top is higher than the upper surface of the main body; the assembly chamber is located directly above the heat dissipation chamber, opens upwards, and its top is provided with an openable and closable top cover; when closed, the top cover forms a closed cavity with the assembly chamber, and a heat insulation component is provided on the back of the top cover; the heat insulation component includes a contoured heat insulation material layer that adheres to the back of the top cover, and a contoured fixing plate for fixing the contoured heat insulation material layer; the contoured fixing plate adheres to the back of the top cover, its edge is provided with a fixing buckle, and the top cover is provided with a fixing slot adapted to the fixing buckle.

[0010] In some implementations, the conformal insulation layer is made of ceramic fiber or aerogel composite material.

[0011] In some implementations, the fixing buckles are evenly distributed along the edge of the contour fixing plate, and the number is 4-6.

[0012] In some embodiments, the contouring fixing plate is provided with multiple weight reduction windows, which are circular or polygonal and are evenly arranged along the surface of the fixing plate.

[0013] In some embodiments, at least two strip-shaped heat dissipation holes are provided on the side wall of the heat dissipation chamber, and the heat dissipation holes extend in a vertical direction.

[0014] In some implementations, the height of the assembly chamber is 1 / 2 to 2 / 3 of the height of the heat dissipation chamber, and the lateral width of the assembly chamber is not greater than the lateral width of the heat dissipation chamber.

[0015] In some implementations, the top cover and the sub-shell are connected by a hinge structure, and the opening angle of the top cover is in the range of 0°-120°.

[0016] In some implementations, the conformal fixing plate is made of sheet metal stamping with a thickness of 0.8-1.2 mm.

[0017] The beneficial effects of this utility model are as follows: This technical solution uses multiple protections of "physical isolation + passive heat insulation (heat insulation material)" to control the temperature of the assembly chamber below 50℃, avoiding the risk of gas cylinder leakage due to high temperature; the heat dissipation chamber and the assembly chamber are integrated into the sub-shell, eliminating the need to occupy additional transverse space of the furnace body, and the overall volume of the furnace body is reduced by 15% compared with the traditional design; the fixing buckle and slot design of the contour fixing plate enables quick disassembly and assembly, facilitating the replacement of the heat insulation material layer; the 120° opening and closing top cover and the anti-slip positioning groove improve the efficiency of gas cylinder replacement; the combination of high temperature resistant materials and sealing design reduces the risk of component corrosion, extending the service life of the furnace body by more than 30%. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of the furnace body of a portable gas stove according to this utility model.

[0020] Figure 2 This is a bottom view of the furnace body of a portable gas stove according to this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of a portable gas stove after the top cover has been removed.

[0022] Figure 4 This is a schematic diagram of the structure of the top cover and heat insulation components of a portable gas stove after assembly.

[0023] Figure 5 This is a side view of the furnace body of a portable gas stove after the top cover and insulation components are assembled.

[0024] Figure 6 This is a schematic diagram of the top cover of a portable gas stove according to this utility model.

[0025] Figure 7 This is a schematic diagram of the structure of the contour fixing plate of the furnace body of a portable gas stove according to this utility model. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] like Figures 1 to 7 As shown, the embodiment of this utility model includes: a furnace body for a portable gas stove, wherein the furnace body 100 is the main supporting structure of the portable gas stove, and a sub-shell 200 is integrated on one side. The sub-shell 200 is generally arranged in an "L" shape, with a heat dissipation chamber 201 at the bottom and an assembly chamber 202 at the top. The two are connected to the furnace body 100 by an integral molding process to ensure structural strength. The sub-shell 200 is made of high-temperature resistant ABS engineering plastic, which can withstand temperature changes and mechanical impacts during long-term use.

[0028] The heat dissipation chamber 201 has an opening facing downwards, and its top plane is higher than the upper surface of the furnace body 100, forming a "protruding" structure. Two strip-shaped heat dissipation holes are symmetrically arranged on the side wall of the heat dissipation chamber 201. The heat dissipation holes extend vertically, with a length of 2 / 3 of the height of the heat dissipation chamber 201 and a width of 8-10mm. The direction of the heat dissipation holes is consistent with the direction of natural convection, which can guide hot air to be quickly discharged upwards, while preventing external dust from falling directly in.

[0029] The assembly chamber 202 is located directly above the heat dissipation chamber 201, with its opening facing upwards. Its height is 1 / 2 to 2 / 3 of the height of the heat dissipation chamber 201 (preferably in a ratio of 1:1.5), and its lateral width is consistent with that of the heat dissipation chamber 201 to ensure a compact overall structure. The assembly chamber 202 has a positioning groove inside that is compatible with the gas valve and gas cylinder. The groove wall is covered with an anti-slip rubber layer to prevent the gas cylinder from shifting during use. The top edge of the assembly chamber 202 is provided with a sealing strip that can fit tightly against the edge of the top cover 300 when the top cover 300 is closed, enhancing the sealing performance of the enclosed cavity.

[0030] The top cover 300 is connected to the sub-shell 200 via a hinge structure. The hinge has a rotation angle range of 0°-120°, which can enable the top cover 300 to be fully opened and stably closed. The thermal insulation component on the back of the top cover 300 includes a contoured thermal insulation material layer 401 and a contoured fixing plate 402.

[0031] Contour-shaped thermal insulation material layer 401: Made of ceramic fiber or aerogel composite material, with a thickness of 3-5mm, its shape is completely fitted to the back of the top cover 300, covering more than 90% of the area of ​​the back of the top cover 300, with a focus on covering the area corresponding to the assembly chamber 202.

[0032] The conformal fixing plate 402 is made of aluminum alloy sheet with a thickness of 0.8-1.2mm and is stamped to match the shape of the thermal insulation material layer. There are 4-6 fixing buckles 403 evenly distributed on the edge of the fixing plate (preferably 4, located at the four corners). The fixing buckles 403 are "L" shaped and are interference-fitted with the fixing slots 301 pre-set on the top cover 300 to achieve quick assembly and disassembly. The surface of the fixing plate is also provided with multiple circular weight-reducing windows 404 (diameter 10-15mm). The windows are symmetrically arranged along the central axis of the fixing plate to reduce weight without affecting the structural strength.

[0033] The heat dissipation chamber 201 has its opening facing downwards and its top is higher than the upper surface of the furnace body 100. It can utilize the principle of "hot air rising" to allow the heat generated by combustion to diffuse to the surroundings through the upper surface of the furnace body 100. Some of the heat is guided downwards by the protruding structure of the heat dissipation chamber 201 and then discharged through the heat dissipation holes in the side wall. The assembly chamber 202 is located directly above the heat dissipation chamber 201. The two form an "upper and lower layered" layout to prevent the combustion heat from being directly transferred to the assembly chamber 202 and to reduce the ambient temperature of the gas valve and gas cylinder.

[0034] The ceramic fiber / aerogel material of the contoured insulation layer 401 has a low thermal conductivity (≤0.03W / (m·K)), which can effectively block the transmission of high temperatures (such as flame radiation and ambient temperature) from the outside of the furnace to the assembly chamber 202. The contoured fixing plate 402 is rigidly connected to the top cover 300 through the fixing buckle 403 to prevent the insulation layer from falling off due to vibration. On the other hand, the metal plate can reflect some of the radiant heat, further enhancing the insulation effect. The design of the weight-reducing window 404 reduces the weight of the top cover 300 (reduces the hinge load) while forming an air circulation gap to assist the insulation layer in heat dissipation.

[0035] When the top cover 300 is closed, the sealing strip is pressed and adhered to the edge of the assembly chamber 202 to form a closed cavity, which can prevent external dust and moisture from entering the assembly chamber 202 and protect the gas valve interface from corrosion. The 120° opening angle design of the hinge facilitates the installation and replacement of the gas cylinder and avoids structural deformation caused by excessive opening of the top cover 300.

[0036] In use, the top cover 300 is opened to assemble the gas cylinder and gas valve into the assembly chamber 202. After closing the top cover 300, the heat insulation component blocks external heat through the conformal heat insulation material layer 401 and the metal fixing plate, and the sealing strip ensures that the inside of the assembly chamber 202 is clean. During combustion, part of the heat generated by the furnace body 100 is guided downward by the raised structure of the heat dissipation chamber 201 and quickly discharged through the strip-shaped heat dissipation holes, reducing the ambient temperature of the assembly chamber 202. The weight reduction window 404 of the conformal fixing plate 402 works in conjunction with the air convection of the heat dissipation chamber 201 to further optimize the heat dissipation efficiency.

[0037] In this technical solution, both the furnace body 100 and the sub-shell 200 are made of aluminum alloy to prevent them from being affected when using electromagnetic equipment, thereby causing temperature changes in the assembly chamber 202.

[0038] The advantages of this technical solution are:

[0039] Enhanced safety: Through triple protection of "physical isolation (layered layout) + active heat dissipation (heat dissipation holes) + passive heat insulation (heat insulation materials)," the temperature of assembly chamber 202 is controlled below 50℃ (the temperature of conventional cassette furnace assembly chamber 202 is usually 60-80℃), avoiding the risk of gas cylinder leakage due to high temperature.

[0040] Compact structure: The heat dissipation chamber 201 and the assembly chamber 202 are integrated into the sub-shell 200, which does not require additional horizontal space of the furnace body, and the overall volume of the furnace body is reduced by 15% compared with the traditional design.

[0041] Easy maintenance: The fixing buckle 403 and slot design of the contoured fixing plate 402 enable quick disassembly and assembly, facilitating the replacement of the insulation material layer; the 120° opening and closing top cover 300 and the anti-slip positioning groove improve the efficiency of gas cylinder replacement.

[0042] Enhanced durability: The combination of high-temperature resistant materials and a sealed design reduces the risk of component corrosion, extending the furnace body's service life by more than 30%.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A portable gas stove body, comprising a main body (100) and a secondary shell (200) disposed on one side of the main body (100), the secondary shell (200) being used to assemble a gas valve and a gas cylinder, characterized in that: The sub-shell (200) is provided with a heat dissipation chamber (201) and an assembly chamber (202); the heat dissipation chamber (201) has an opening facing downwards and its top is higher than the upper surface of the furnace body (100); the assembly chamber (202) is located directly above the heat dissipation chamber (201), with its opening facing upwards, and its top is provided with an openable top cover (300); when the top cover (300) is closed, it forms a closed cavity with the assembly chamber (202), and the back of the top cover (300) is provided with a heat insulation component; the heat insulation component includes a contoured heat insulation material layer (401) that is attached to the back of the top cover (300), and a contoured fixing plate (402) for fixing the contoured heat insulation material layer (401). The contoured fixing plate (402) is attached to the back of the top cover (300), and its edge is provided with a fixing buckle (403). The top cover (300) is provided with a fixing slot (301) that is adapted to the fixing buckle (403).

2. The furnace body of a portable gas stove according to claim 1, characterized in that: The conformal thermal insulation material layer (401) is made of ceramic fiber or aerogel composite material.

3. The furnace body of a portable gas stove according to claim 1, characterized in that: The fixing buckles (403) are evenly distributed along the edge of the contour fixing plate (402), and the number is 4-6.

4. The furnace body of a portable gas stove according to claim 1, characterized in that: The contour fixing plate (402) is provided with a plurality of weight reduction windows (404), which are circular or polygonal and are evenly arranged along the surface of the fixing plate.

5. The furnace body of a portable gas stove according to claim 1, characterized in that: The heat dissipation chamber (201) has at least two strip-shaped heat dissipation holes on its side wall, which extend vertically.

6. The furnace body of a portable gas stove according to claim 1, characterized in that: The height of the assembly chamber (202) is 1 / 2 to 2 / 3 of the height of the heat dissipation chamber (201), and the lateral width of the assembly chamber (202) is not greater than the lateral width of the heat dissipation chamber (201).

7. The furnace body of a portable gas stove according to claim 1, characterized in that: The top cover (300) and the sub-shell (200) are connected by a hinge structure, and the opening and closing angle range of the top cover (300) is 0°-120°.

8. The furnace body of a portable gas stove according to claim 1, characterized in that: The contour fixing plate (402) is made of metal sheet by stamping and has a thickness of 0.8-1.2mm.

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